Examine source code of Twitch Coin Collector

{
  "manifest_version": 2,
  "name": "Twitch Coin Collector",
  "short_name": "TwitchCC",
  "version": "0.9.4",
  "developer": {
    "name": "Nico Grau",
    "url": "https://www.nicos-ameisen.de"
  },
  "description": "Sammelt automatisch Bonuskanalpunkte auf Twitch.",
  "icons": {
    "48": "icons/tcc-48.png",
    "96": "icons/tcc-96.png"
  },
  "background": {
    "scripts": [
      "background.js"
    ]
  },
  "permissions": [
    "activeTab"
  ],
  "browser_action": {
    "default_icon": {
      "16": "icons/tcc-16.png",
      "32": "icons/tcc-32.png"
    },
    "default_title": "TwitchCoinCollector"
  },
  "content_scripts": [
    {
      "matches": [
        "*://*.twitch.tv/*"
      ],
      "js": [
        "/content-scripts/clickbutton.js"
      ]
    }
  ],
  "browser_specific_settings": {
    "gecko": {
      "id": "{5401f0d8-7bc4-493a-a6ef-1e06fcce8b1a}"
    }
  }
}